Companies collect a bunch of telemetry about everyone they can, that’s the basis of their ad revenue. The data is used to identify you, your devices, and your preferences, and is called a digital fingerprint.
They also use this fingerprint to detect people doing things like making an account to avoid a ban.
Your fingerprint, when you made a reddit account at work, will have virtually identical devices attached as anyone else using reddit at work. Lots of people have alt accounts for normal reasons, so Reddit decided yours and someone else’s belonged to the same fingerprint, probably since you made the account.
But now they got banned. Maybe even got caught actually using a second account to circumvent it, and reddit is cracking down on the whole digital fingerprint because that’s “you”.
I am OK with shitty companies washing their hands of it by letting it be freeware.
In fact that’s my preferred way for them to do it. Way better.